Brake lines options

[Cautrell05]

I'm nowhere ready for brake lines yet but am trying to get it planned out. My build is a 47 S10 chassis but the info could be applied to anybody's. Couple options locally. There's the standard plain steel lines that get rusty after a couple months, there's the plastic coated lines that last a bit longer but they are green. They recently came out with a copper alloy line that I used to fix the rear brake line on my daily driver. Black anodized fittings, nice copper color, twice the price but are not supposed to rust out. Looked great going on and was thinking about using them on the 47 but after two months of winter driving the fittings are rusty and the copper is green. I'm thinking about just going with stainless and an fittings. I got stuck buying a $100 37 degree flaring tool a while back so that part world be taken of. Thoughts and opinions welcome
Thanks
Nick